2169740

素因数分解:

$2^2\times 5^1\times {\mathrm{157}}^1\times {\mathrm{691}}^1$

素因数の和:857

約数の個数: 24

約数和(自身を含む): 4592112

約数和(自身を除く): 2422372

約数列:

[1, 2, 4, 5, 10, 20, 157, 314, 628, 691, 785, 1382, 1570, 2764, 3140, 3455, 6910, 13820, 108487, 216974, 433948, 542435, 1084870, 2169740]

約数ペア:

[(1, 2169740), (2, 1084870), (4, 542435), (5, 433948), (10, 216974), (20, 108487), (157, 13820), (314, 6910), (628, 3455), (691, 3140), (785, 2764), (1382, 1570)]